Difference in chemical composition and antimicrobial activity of Thymus capitatus L. essential oil at different altitudes

El-Jalel, Lamya; Elkady, Wafaa M.; Gonaid, Mariam; El-Gareeb, Kamel A.

doi:10.1016/j.fjps.2017.12.004

Cited by 32 publications

(22 citation statements)

References 10 publications

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“…in comparison with our finding. El Jalel et al (2018) found that the main constituents of T. capitatus aerial part EO from Libya were carvacrol (58.56%), which was comparable to our finding, while β-caryophyllene (7.41%), ledene (6.57%), caryophyllene oxide (6.26%) and α-humulene (5.20%) contents were higher than that obtained in our results [41]. We noticed the presence of a relatively high content of 1,8-cineole (2.9%) in comparison with the cited studies.…”

Section: Chemical Compositionsupporting

confidence: 88%

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Correlation between chemical composition and antibacterial activity of some Lamiaceae species essential oils from Tunisia

Moumni

Elaissi

Trabelsi

et al. 2020

BMC Complement Med Ther

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Background: Lamiaceae family is one of the most diverse and common plant families in terms of ethnomedicine due to their potential therapeutic effects. The aim of this study is to investigate the correlation between the chemical composition and the antibacterial effect of five essential oils from this family against five reference bacterial strains responsible of nosocomial diseases and foodborne illnesses. Methods: The commercial essential oils of Tunisian Rosmarinus officinalis, Thymus capitatus, Origanum majorana and Salvia officinalis were analyzed by GC/FID and GC-MS. Essential oils were evaluated for their antibacterial activities by disc diffusion and microbroth dilution methods against five reference bacterial strains: Pseudomonas aeruginosa, Escherichia coli, Salmonella enterica, Bacillus subtilis and Staphylococcus aureus. The inhibition zone diameter values and the twenty major compounds of the selected essential oils were subjected to PCA and HCA analysis. Results: Analysis by GC/FID and GC/MS allowed the identification of ninety-one components representing 96.0 to 98.2% of the total oils. The different component contents varied according to the species. The main components were carvacrol, 1,8-cineole, α-thujone, α-terpineol and α-pinene. The PCA and the HCA of the selected essential oil components and the inhibition zone diameter (IZD) values identified four species groups and subgroups. Each essential oils group constituted a chemotype responsible for their bacterial inhibition ability. Thymus capitatus essential oil showed the strongest antibacterial activity with MBC ranging from 0.73 to 2.94 mg mL − 1. Conclusion: Rosmarinus officinalis, Thymus capitatus, Origanum majorana and Salvia officinalis essential oils have shown promising antibacterial activities against reference bacterial strains responsible for nosocomial diseases and foodborne illnesses.

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Section: Chemical Compositionsupporting

confidence: 88%

“…It is interesting to note the susceptibility to the T. capitatus EO of P. aeruginosa, which is known to be a very resistant bacterium even to synthetic drugs, with MICs ranging from 0.73 to 2.94 mg/mL. This result confirm those found with EL Jalel et al (2018) [41].…”

Section: Antibacterial Activitysupporting

confidence: 84%

Correlation between chemical composition and antibacterial activity of some Lamiaceae species essential oils from Tunisia

Moumni

Elaissi

Trabelsi

et al. 2020

BMC Complement Med Ther

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“…In addition to the above-mentioned microorganisms, Rosmarinus officinalis was also effective against Enterococcus faecalis , Klebsiella pneumoniae [ 48 ], and Pseudomanas aeruginosa [ 43 ]. The antibacterial activity of the most widely used EOs from Thymus species, which belong to the Lamiaceae family, was also demonstrated against several microorganisms such as Salmonella typhi , Salmonella typhimurium , Escherichia coli , Staphylococcus aureus , Streptococcus pneumonia , Bacillus cereus , Pseudomanas aeruginosa , Proteus mirabilis , Klebsiella pneumoniae , and Listeria monocytogenes [ 16 , 52 , 53 , 54 ]. On the other hand, the EO from Origanum vulgare (oregano) was one of the most effective EOs against microorganisms.…”

Section: Antimicrobial Activities Of Essential Oilsmentioning

confidence: 99%

Antibacterial, Antifungal, Antimycotoxigenic, and Antioxidant Activities of Essential Oils: An Updated Review

et al. 2020

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The interest in using natural antimicrobials instead of chemical preservatives in food products has been increasing in recent years. In regard to this, essential oils—natural and liquid secondary plant metabolites—are gaining importance for their use in the protection of foods, since they are accepted as safe and healthy. Although research studies indicate that the antibacterial and antioxidant activities of essential oils (EOs) are more common compared to other biological activities, specific concerns have led scientists to investigate the areas that are still in need of research. To the best of our knowledge, there is no review paper in which antifungal and especially antimycotoxigenic effects are compiled. Further, the low stability of essential oils under environmental conditions such as temperature and light has forced scientists to develop and use recent approaches such as encapsulation, coating, use in edible films, etc. This review provides an overview of the current literature on essential oils mainly on antifungal and antimycotoxigenic but also their antibacterial and antioxidant activities. Additionally, the recent applications of EOs including encapsulation, edible coatings, and active packaging are outlined.

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“…When essential oils are used instead of single chemical compound, there have been challenges to examine their mechanism of action because of the large variances in the percentage each chemical compound present [7] depending on the extraction methods [8], the area of origin including differences in the geographic altitude of the areas [9], seasons the plants were harvested [10], and parts of the plants extracted [11,12]. It is thus important to utilize chemically-pure compounds or chemically-defined extracts as described in some recent studies [13–17].…”

Section: Introductionmentioning

confidence: 99%

Beta-caryophyllene enhances wound healing through multiple routes

et al. 2019

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Beta-caryophyllene is an odoriferous bicyclic sesquiterpene found in various herbs and spices. Recently, it was found that beta-caryophyllene is a ligand of the cannabinoid receptor 2 (CB2). Activation of CB2 will decrease pain, a major signal for inflammatory responses. We hypothesized that beta-caryophyllene can affect wound healing by decreasing inflammation. Here we show that cutaneous wounds of mice treated with beta-caryophyllene had enhanced re-epithelialization. The treated tissue showed increased cell proliferation and cells treated with beta-caryophyllene showed enhanced cell migration, suggesting that the higher re-epithelialization is due to enhanced cell proliferation and cell migration. The treated tissues also had up-regulated gene expression for hair follicle bulge stem cells. Olfactory receptors were not involved in the enhanced wound healing. Transient Receptor Potential channel genes were up-regulated in the injured skin exposed to beta-caryophyllene. Interestingly, there were sex differences in the impact of beta- caryophyllene as only the injured skin of female mice had enhanced re-epithelialization after exposure to beta-caryophyllene. Our study suggests that chemical compounds included in essential oils have the capability to improve wound healing, an effect generated by synergetic impacts of multiple pathways.

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Difference in chemical composition and antimicrobial activity of Thymus capitatus L. essential oil at different altitudes

Cited by 32 publications

References 10 publications

Correlation between chemical composition and antibacterial activity of some Lamiaceae species essential oils from Tunisia

Correlation between chemical composition and antibacterial activity of some Lamiaceae species essential oils from Tunisia

Antibacterial, Antifungal, Antimycotoxigenic, and Antioxidant Activities of Essential Oils: An Updated Review

Beta-caryophyllene enhances wound healing through multiple routes

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